In 30900 there are [at least] three significant figures.
30.900 has 5 significant figures.
3.
There are three.
3 in A+
How many significant figures are in 20.8
30.900 has 5 significant figures.
3.
There are three.
3 in A+
Three. The two zeros on the end are just placeholders. 30900 has 3 significant figures.
How many significant figures are in 20.8
There are 3 significant figures in 94.2.
3 significant figures.
4 significant figures.
5 significant figures.
4 significant figures.
3 significant figures.